pathname

Path Manipulation Utilities

Functions

Function	Description
`pn_copy`	Internal: copy bytes from src to dst.
`pn_dirname`	Get directory portion of path. Returns length written to out. “/usr/bin/gcc” …
`pn_extname`	Get file extension including dot. Returns length written to out. “foo.tar.gz”…
`pn_is_absolute`	Check if path is absolute (starts with /).
`pn_normalize`	Normalize path: resolve . and .. components, collapse multiple slashes. Retur…
`pn_split_ext`	Split path into stem and extension. Returns stem length. “archive.tar.gz” -> …
`pn_join3`	Join 3 path segments: a/b/c. Returns length written to out.
`pn_has_ext`	Check if path has given extension. Case-sensitive.

fn pn_copy(dst: &i8, doff: i64, src: &i8, soff: i64, n: i64)

Internal: copy bytes from src to dst.

fn pn_dirname(path: &i8, len: i64, out: &i8) -> i64

Get directory portion of path. Returns length written to out. “/usr/bin/gcc” -> “/usr/bin”, “foo.txt” -> “.”, “/” -> “/”

fn pn_extname(path: &i8, len: i64, out: &i8) -> i64

Get file extension including dot. Returns length written to out. “foo.tar.gz” -> “.gz”, “Makefile” -> "" (returns 0)

fn pn_is_absolute(path: &i8) -> i64

Check if path is absolute (starts with /).

fn pn_normalize(path: &i8, len: i64, out: &i8) -> i64

Normalize path: resolve . and .. components, collapse multiple slashes. Returns length written to out.

fn pn_split_ext(path: &i8, len: i64, stem: &i8, ext: &i8) -> i64

Split path into stem and extension. Returns stem length. “archive.tar.gz” -> stem=“archive.tar”, ext=".gz"

fn pn_join3(a: &i8, al: i64, b: &i8, bl: i64, c: &i8, cl: i64, out: &i8) -> i64

Join 3 path segments: a/b/c. Returns length written to out.

fn pn_has_ext(path: &i8, len: i64, ext: &i8, elen: i64) -> i64

Check if path has given extension. Case-sensitive.